Tooling

Tools/Orogen/js/rng.js

@@ -0,0 +1,11 @@
+// Seeded RNG — deterministic pseudo-random number generators.
+
+export function makeRng(seed) {
+    let s = (Math.abs(Math.floor(seed * 9301 + 49297)) % 2147483646) + 1;
+    return () => { s = (s * 16807) % 2147483647; return (s - 1) / 2147483646; };
+}
+
+export function makeRandInt(seed) {
+    const r = makeRng(seed);
+    return (n) => Math.floor(r() * n);
+}